It’s often wryly observed that birth rates peak in September, with many studies citing seasonal changes in human biology to explain this post-holiday “baby boom.” But new research from scientists at Indiana University and the Instituto Gulbenkian de Ciência in Portugal finds that spikes in pregnancies are actually rooted in society, not biology.

“We observe that Christmas and Eid-Al-Fitr are characterized by distinct collective moods that correlate with increased fertility,” Rocha said. “Perhaps people feel a greater motivation to grow their families during holidays when the emphasis is on love and gift-giving to children. The Christmas season is also associated with stories about the baby Jesus and holy family, which may put people in a loving, happy, ‘family mood.'”

Sexy Corte and I have been on a roll this holiday season — I hate to brag, but during vacation we had sex seven times in 72 hours! She actually had to beg off from having another orgasm because her legs were getting sore. (Ok, so maybe I like to brag a little.) We’re not having any more babies, but being in close proximity for days at a time still seems to rev our engines. (It’s also worth noting that we had a pretty good fight, too — which is also pretty common for couples over the holidays)

I’m sure we weren’t the only ones having great sex over the holidays — what about you? Any sexual accomplishments you’d like to brag about? You can’t share with your “real friends”, but you can share with your pseudonymous internet buddies!

“There are a wide range of responses in the period of time immediately following consensual sexual activity, known as the resolution phase,” says Robert Schweitzer, a psychologist leading the research team at the Queensland University of Technology in Australia.

“For example, some people like to cuddle, others like to be alone and there are others, as we have found in previous research that experience what is described as post-sex blues.”

So how do you feel immediately after sex? What do you do? Let us know in the comments.